Home / 76,204.94-105,162.80-42,215.63

Finding the Fourth Proportional to 76,204.94, 105,162.80 and 42,215.63

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Solution

The fourth proportional to 76,204.94, 105,162.80 and 42,215.63 is: 58,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,204.94 : 105,162.80 = 42,215.63 : x
  2. Step 2: Convert to fraction form
    76,204.94/105,162.80 = 42,215.63/x
  3. Step 3: Cross multiply
    76,204.94x = 105,162.80 × 42,215.63
  4. Step 4: Simplify right side
    76,204.94x = 4,439,513,854.56
  5. Step 5: Solve for x
    x = 4,439,513,854.56/76,204.94
  6. Step 6: Final answer
    x = 58,257.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.